This was a fun class and I learned alot about SCR diving. I was a tad apprehensive at first about the gear, but soon realized it is alot easier to assemble than it looks. (Heck, even I could do it). Diving in all my own usual gear made it very easy to trim out evenly. The GEM is easily adaptable to any rig. Attached the cannister to your cam band, add the counter lungs to your shoulder straps, switch your alternate 2nd stage for an LP QD hose to connect to the system and voila! Ready for the water. I was surprised how much more weight I needed because of the air volume in the loop and counter lungs.
I normally get 2 long dives out of any 80 cft tank with a low SAC rate <0.3 cfm (I'm usually the "spare air" source

). The thought of having more gas available on deeper dives intrigued me. I dove in an LP72 for the weight and barely used half in about 4 hours in-water. With the GEM, I could probably dive all day on a pony bottle.
Downside for me was getting used to so much stuff on my chest (counter lungs) and the loop which reduced my peripheral vision. I asked if the loop came in shorter lengths (cause I'm a shorty) and Rob explained that the loop length is scientifically calculated on volume requirements needed for scrubbing and gas exchange.


Special thanks to Rob and Jen Neto. I loved their teaching style, laid-back yet thorough and detail oriented, no-stress (except the self-induced kind). They complement each other well...and are a blast to spend time with. It was fun showing them our "backyard" and see how excited Rob got when a trumpet fish hung out in front of his mask, staring him in the eye. (Benefit of no bubbles). I am looking forward to heading to the panhandle of FL for some cave diving in their turf.